Earth-excavating machine



UNITED STATES PATENT OFFICE.

RICHARD O. OUSHING AND JOHN J. BUTLER, OF LINCOLN, NEBRASKA.

EARTH-EXCAVATING MACHINE.

SPECIFICATION forming part of Letters Patent No. 251,194, dated December 20, 1881.

Application filed June 1, 1881.

To all whom it may concern Be it known that we, R. O. OUSHING and J. J. BUTLER, of the city of Lincoln,in the county of Lancaster and State of Nebraska, have invented certain new and useful Improvements in Earth-Excavating Machines; and we do hereby declare that the followingis afull, clear, and exact description of the invention, which will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters of reference marked thereon, which form a part of this specification.

Figure 1 is a side elevation of our improved earth-excavator. Fig. 2 is a plan or top view of the same.

The same part is indicated by the same letter of reference in both figures.

The nature of our invention consists in the combination, in a single implement, of a reversible dump-box and an adjustable vibrating scraper so shaped and hung as to be capable of being raised so as to empty its contents into the dump-box at the pleasure of the attendant, the dump-box being so hung on the axle as to be, when released, readily self-emptying, by reason of its center of gravity, when filled, being above the points of suspension, the whole forming a simple, convenient, portable earth-excavator or roadscraper, all as hereinafter more specifically set forth.

In the drawings, A marks the axle, and W the wheels, which support and carry the box and scraper.

D is the dump-box or body, which is hung loosely upon the axle A, which passes through the box near the bottom, as shown in Fig. 1, so that when free the box will hang bottom upward. It is held in upright position for receiving and carrying a load by means of a latch or dog, d, hinged to a post, R, and which enters a notch, 11., in the upper margin of the box, as shown in Fig.2. When the latch is lifted out of the notch the box D turns over and assumes the position represented in dotted lines in Fig. 1.

E is the excavator or scraper, having the shape shown, and attached to the forward ends of the handle or lever H. This lever is hung loosely upon the axle A, which is its fulcrum.

(No model.)

By depressing the handle H the scraper E is raised, and vice versa. tached to one of the shafts S, serves to hold the scraper up while the implement is not at work. The descent of the scraper is limited by means of the braces B, which engage at their lower angles with pins p, projecting from the sides of the scraper, as shown. WVe prefer to make these braces adjustable by means of slots in the shafts S and pins running through the shafts and through holes in the braces, so that the position of the scraper can be adjusted for teams of different heights. The shafts S are rigidly fixed to the axle A. The pole P indicates the point of application of the draft.

When during the operation of the scraper or excavator the scraper E becomes filled the attendant depresses the handle H and raises the scraper to the position shown in dotted lines in Fig. 1. The contents then fall into the box D, and the scraper is lowered for a renewal of its work. When the dump-box D becomes filled the latch d is raised out of the notch n and the box dumps itself.

What we claim is 1. An earth-excavator having a self-discharging dump-box, in combination with a vivibrating or lifting scraper attached to the forward end of the handles and operating to empty itself into the front side of the dumpbox at the will of the attendant by the depression of the handles, all as described.

2. The combination of the wheels W, axle A, handle H, and scraper E, all in the manner and for the purpose specified.

3. The combination of the wheels W, axle A, box D, post It, latch d, and notch n, all as and for the purpose set forth.

4. The combination of the axle A, shafts S, braces B, button I), scraper E, and pins 9, all in the manner and for the purposes stated.

In testimony that we claim the foregoing as our own invention we affix our signatures in presence of two witnesses.

RICHARD O. OUSHING. JOHN J. BUTLER.

Witnesses:

J. T. MULLoN, F. M. HALL.

A turn-button, b, at-' 

